Distilling apparatus.



l. PIETTE.

I DISTILLING APPARATUS.

APPLICATION FILED APR. 7. IQII.

Patented Mau. 18, 1919.

the

JOSEPH PIETTE, OF ST.GILLES,'BBUSSELS, BELGIUM.

-DISTILLING APPARATUS.

l Specification of Letters .Patent Patented Mar. 18, 1.919;

Application filed April 7, 1917. Serial No. 180,496.

To all 'whom t may concern.'

Be it known that I, JOSEPH P-mrrn, a sub- Y ject of the King of Belgium, residing at St.-

Gilles, Brussels, Bel ium, have invented certain new and usefu Improvements in Distill- Apparatus; and I do hereby declare 1fllowing to be a full, clear, and exact description of the invention, such as w1ll enable others Skilled in the art to which it appertains to make and use 'the same, refer ence beinghad to the accompanying drawings, and to letters or figures' of reference marked therein, which form a part of this specification. t!

lln the apparatus previous y roposed for distillin tar, mineral, vegetab e and other oils, the iquid is distilled in vessels rovided withsteam heated tubes over which t e liquid iiows in a thin sheet. I

The apparatus according to the present invention differs 'from the known a paratus by the fact thatthe distillation ta es place in nests of tubes quite similar to the nests of tubes usually employed in steam generators, and that 'a stream of steam is sent through said tubes. With these purposes in view, the tubesof said nests are arranged in the path o f the combustion gases of a furnace and are connected at one end lto an admission box for the liquid and at the other end to an outlet box, the latter being also rovided with a device for the withdrawal o the volatilized components which are the products of the distillation. The steam is introduced in the various tubes by means of suitable pipes at the end near the admission box. When a continual and fractional distillation is to be erformed, the nests of tubes as before descri ed are connected in series and arranged in separate compartments through which the combustion gases of a common furnace are forced to flow, the volume of gases passing in each compartment being regulated by means of dampers. The temperature in each nest of tubes is regulated at will by the quantity of liquid flowing through it, by the quantity of steam admitted and by the volume of heating combustion gases in the compartment. n The arrangement of the nest of tubes renders very easy the'cleaning operation 'of the apparatus, and renders possible a regular lheating in the whole mass of the liquid and also a suitable limitation of the quantit of liquid in direct contact with the sur aces l heated by the .combustion gases.

Another advantage of these nests is that they can easily be arranged in a stream of hot gases.

Steam is sent in each tube of the nest in 'order that the liquidfmaterial to be distilled series in separate compartments of an oven is advantageous, in that it is possible to regulate easily the fractional separation of the products of the distillation by modifications 1n the quantity of liquid material flowing through the nests, in the quantity of steam injected in each nest, and in the quantity ofhot gases passing through each compartment.

Furthermore, owing to this arrangement, the use of a single furnace for heating the various parts of the apparatus may easily be used.

1 The accompanying drawing shows by way of example an embodiment of the invention.

Figure 1 is a longitudinal sectionin Athe apparatus.

Fig. 2 is a transversal section taken on A-B in Fig. 1.

Fig. 3 is a plan view showin the apparatus partially in section on the evel of the tubes.

The distilling plant comprises a furnace 1 with fire-grate, from which the combustion gases reach a distributing horizontal channely 2. The gases escaping from the latter reach the four compartments 3, which are connected by iues 4 with the main flue 5 for the gases. Dampers 6 are slidably arranged so that they may be moved from the outside through slits 7 in the masonry and to stop up more or less the l'ues 4 in order to regulate the draft and consequently the quantity of combustion gases flowing through each compartment.

In each compartment 3 is arranged a nest of tubes comprising several rows of tubes 8 communicating at one end with an admission box 9 for the liquid and at the other 9 of the rst compartment, near the furnace, by a pilfie 11, provided with a coclg. 12 by means o which the quantity of liquid owing toward the apparatus may be regulated. A pipe 13 connecte the outlet box 10 of the 4rst nest with the admission box 9 o the second nest, a pipe 14 connects the outlet box of the second nest with the admission box of the third one and a ipe 15 connects the outlet box of the third undle with the admission box of the fourth one. A suitable evacuation pipe leads away the liquid residuum from 'the outlet box of the fourth nest of tubes.

Each outlet box 10 is rovidedgwith a collecting device 16 in W ich the volatilized components of each nest of tubes are gathered, andthey are then led away through the aperture 17. y

A pipe 18 connects the admission box' to the outlet box of each nest over the vault of the compartment in order that the gases gathering in the admission box may reach the collector 16.

The steam used for stirrin up the material and for carrying away le volatilized components is distributed 1n each nest-of tubes through the admission box. Each distributing device for the steam comprises a collector 19 to which steam is admitted through a pipe provided with a regulating cock 20. From the collector 19 the steam is led by pipes 21 through the admission box 9 and in]ected in each tube of the. nest.

It is to be noted that the various nests of' tubes are located in a cascade-like arrangement, that is to say each nest is arranged a little lower than the preceding one, in such a manner that the liquid flows by the action of gravity from each outlet box to the admission box of the next nest.

Thel temperature of distillation in each nest of tubes may be regulated at will by incasso va ,either se aratel or simultaneousl thggldtion of cck 12,ythe position of tlie dempers 6 of the compartments 3 or the position of the steam cock 20.

After the temperature of distillation has been regulated in this may, the distillation takes 1, in a continual manner and the vola .1? ed products formin each fractional part of the liquid are regu arly collected at the various apertures 1'?.

N :it at ll claim is:

1. Apparatus for distilling tar, mineral, vegetable and ,other,oils, comprising in coinbination, a series of nests of tubes arranged in cascade, separate chambers containing said nests of tubes, a furnace for supplying hot as to each of said chambers means for admitting steam and oil to thedrst of said nests of tubes, means 'for admitting steam to each of the successive nests of tubes, and

means for collecting the volatilized components of the oil evolved in said nests of tubes.

2. Apparatus for distlling tar, mineral, vegetable and other oils, comprising in (ombination, a series of nests of tubes arranged in cascade, separate chambers containing said nests of tubes, a furnace for supplying hot gas to each of said chambers, dempers for controlling the heating eiiect in each nest of the series, means for admittin steam and oil to the first of said nests o tubes, means for admitting steam to each of the successive nests of tubes, and chambers Jfor collecting the volatilized components of the oil evolved in said nests of tubes.

In testimony whereof I ailix my signature in presence of two Witnesses.

JOSEPH PIETTE.

Witnesses Crmnnns, MnRcHrc, Gunmen-im Amanorsn. 

